In the novel "The Hunger Games," Katniss expects to find the item that her ally, Peeta, needs to survive at the feast. The feast is a planned event by the game makers in which each tribute's district is sent a backpack with supplies that they may need to survive the rest of the games. The backpacks are placed in a central location, and the tributes must fight to get to their respective backpacks.
Katniss and Peeta have been working together as allies in the games, and Peeta is badly injured and in need of medicine to heal. Katniss assumes that the game makers have placed the medicine that Peeta needs in the backpack that corresponds to their district. Therefore, she plans to go to the feast to retrieve the backpack and get the medicine that Peeta needs to survive.
However, the journey to the feast is dangerous, and Katniss knows that she will have to fight against the other tributes to get the backpack. She prepares herself mentally and physically for the fight, knowing that she may have to use her hunting and survival skills to stay alive. Ultimately, she is successful in getting the backpack and saving Peeta's life.